Airline 2 of 5 barcodes contain several specific elements, including:
- Leading Quiet Zones
- Start Characters
- Data Characters
- Check Digits (Optional)
- Stop Characters
- Trailing Quiet Zones
This format makes it possible for barcode readers to easily identify the start and stop points of 2 of 5 barcodes, which is essential for large-volume airline applications.
Airline 2 of 5 codes support numeric digits 0 through 9 and can include an optional check digit that uses the modulo 10 algorithm. There are also specific size limits on the height and width of both bars and quiet zones in Airline 2 of 5 codes to ensure accurate results when read. Given the interleaved nature of data encoding, this barcode can be made smaller than similar codes containing the same number of digits, and the ability to increase bar width means they’re easier to read than their non-interleaved counterparts, making them an ideal choice for high-volume airline applications.